Chemical additives for oil well drilling fluid 1667
油井钻井液化学添加剂
Chinese
油井钻井液化学添加剂
English
Chemical additives for oil well drilling fluid
- Site ref.
- 1667
- Class
- 01
- Included in
- Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)